DocumentCode
2796193
Title
Studies of lightning overvoltages of 115 kV CMU GIS substation
Author
Thanasaksiri, T.
Author_Institution
Department of Electrical Engineering, ChiangMai University, Thailand 50200
fYear
2012
fDate
16-18 May 2012
Firstpage
1
Lastpage
4
Abstract
This paper presents the analysis of lightning overvoltage for the new coming 115 kV CMU (ChiangMai University) GIS (Gas Insulated Switchgear) substation applying simplified models. The GIS being considered here is connected to an overhead line through XLPE underground cables. The sensitivity analysis of lightning overvoltage have been evaluated using ATP-EMTP. Factors including, pole footing resistance, cable length and additional surge arrester installed which gives the variation of overvoltages in GIS have also been considered. Finally, means to reduce the lightning overvoltages for the new coming 115 kV CMU GIS substation will be recommended.
Keywords
Arresters; Gas insulation; Lightning; Power cables; Resistance; Substations; Surges;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on
Conference_Location
Phetchaburi, Thailand
Print_ISBN
978-1-4673-2026-9
Type
conf
DOI
10.1109/ECTICon.2012.6254221
Filename
6254221
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